JPH0827210B2 - Weighing device - Google Patents
Weighing deviceInfo
- Publication number
- JPH0827210B2 JPH0827210B2 JP61109650A JP10965086A JPH0827210B2 JP H0827210 B2 JPH0827210 B2 JP H0827210B2 JP 61109650 A JP61109650 A JP 61109650A JP 10965086 A JP10965086 A JP 10965086A JP H0827210 B2 JPH0827210 B2 JP H0827210B2
- Authority
- JP
- Japan
- Prior art keywords
- weighing
- load
- dish
- pan
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Measurement Of Force In General (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は秤量装置に係り、特に瞬間的な大荷重に対す
る防護機能を設けた秤量皿を有する秤量装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weighing device, and more particularly to a weighing device having a weighing dish provided with a protection function against a momentary heavy load.
例えばロードセルを用いた秤量装置、電磁平衡式の秤
量装置（電子天秤）等、業務用、家庭用、研究室用等様
々な用途の秤が使用されているが、秤量が数キログラム
程度のこれらの装置では、秤量物を載置する秤量皿を有
する構成となっているのが一般的である。For example, a weighing device using a load cell, an electromagnetic balance weighing device (electronic balance), and various other types of scales for commercial use, household use, laboratory use, etc. are used. In general, the apparatus has a configuration including a weighing dish on which the item to be weighed is placed.
第６図は従来型装置における秤量皿の取りつけ状態を
示す。１は装置本体のケーシング２を挿通して配置した
軸であり、上端には秤量皿支持板３が取りつけてあり、
この秤量皿支持板３上に秤量皿４が載置される。一方軸
１の他端はケーシング内の荷重測定機構に接続し、秤量
皿４に載置した秤量物の荷重を測定する。FIG. 6 shows the mounting state of the weighing pan in the conventional device. Reference numeral 1 denotes a shaft which is arranged by inserting a casing 2 of the apparatus main body, and a weighing dish support plate 3 is attached to the upper end of the shaft.
The weighing dish 4 is placed on the weighing dish support plate 3. On the other hand, the other end of the shaft 1 is connected to a load measuring mechanism in the casing to measure the load of the weighing object placed on the weighing pan 4.
以上の構成において、秤量装置使用時に、秤量物を秤
量皿４に落下させる等により、装置に対して瞬間的に許
容量以上の荷重が加わることがある。この場合、この大
きな荷重は秤量皿４、秤量皿支持板３、軸１を介して荷
重測定機構に直接伝達されることになる。この大きな荷
重が加わると、例えば荷重測定機構がロードセルの場合
にはこのロードセルが座屈する等の損傷が生じる虞れが
ある。また電子天秤の場合には、アーム、ロバーバル機
構、ビーム等の組み合わせにより荷重伝達機構が複雑に
構成されているため、この荷重伝達機構に狂いが生じた
適正な測定が不可能になったりする可能性がある。In the above configuration, when the weighing device is used, a load more than the allowable amount may be momentarily applied to the device by dropping the weighing object on the weighing dish 4. In this case, this large load is directly transmitted to the load measuring mechanism via the weighing pan 4, the weighing pan support plate 3, and the shaft 1. When this large load is applied, for example, when the load measuring mechanism is a load cell, damage such as buckling of the load cell may occur. Also, in the case of electronic balance, the load transmission mechanism is complicatedly composed by combining the arm, the Roberval mechanism, the beam, etc., so there is a possibility that proper measurement may not be possible due to deviation of this load transmission mechanism. There is a nature.
このため、上記のような瞬間的な大荷重に対応する構
造が何種か提案されている。例えば、この例として実公
昭57−13453（実願昭51−4299）がある。この構成は秤
量皿を弾性的な構成部材により支持することにより、秤
量皿に対して瞬間的に大荷重が加わった場合、この構成
部材によりその荷重を吸収するようになっている。この
構成は比較的良好に荷重の吸収を行うことができる反
面、部品点数が増加して秤量皿支持部の構造が複雑とな
り、且つ組み立て工程も増加して不経済でもある。For this reason, some types of structures have been proposed that can cope with the above-mentioned momentary heavy load. For example, as an example of this, there is Japanese Utility Model Publication 57-13453 (Japanese Application No. 51-4299). In this configuration, the weighing dish is supported by an elastic component so that when a large load is momentarily applied to the weighing dish, the component absorbs the load. Although this structure can absorb the load relatively well, it increases the number of parts, complicates the structure of the weighing pan support, and increases the assembly process, which is uneconomical.
本発明は以上の問題点に鑑み構成したものであり、秤
量皿の少なくとも一部を弾性構造としたことを特徴とす
る秤量装置である。The present invention is configured in view of the above problems, and is a weighing device characterized in that at least a part of the weighing dish has an elastic structure.
本発明は上述のように秤量皿の少なくとも一部を弾性
構造としたので、秤量皿自体で瞬間的な大荷重を吸収す
ることができ、秤量皿取りつけ部に別途弾性体を配置す
る必要がなく、装置の構造を単純化できる。Since the present invention has an elastic structure in at least a part of the weighing dish as described above, the weighing dish itself can absorb a momentary heavy load, and it is not necessary to dispose an elastic body separately in the weighing dish mounting portion. , The structure of the device can be simplified.
以下本発明の実施例につき図面を用いて具体的に説明
する。Embodiments of the present invention will be specifically described below with reference to the drawings.
第１図は本発明の第１の実施例を示す。 FIG. 1 shows a first embodiment of the present invention.
図中符号５は秤量皿である。この秤量皿５は上面の秤
量物載置面5aと、この載置面5aと一体的に構成した側部
の瞬間荷重吸収部5bとから成っている。このうち、側部
の瞬間荷重吸収部5bは図示するように、ベロー状に屈曲
形成してあり、瞬間的に大きな荷重が加わった場合には
この屈曲部が撓むことによりその瞬間荷重の大部分を吸
収する。６はこの秤量皿５を載置し支持する秤量皿支持
板であり、軸１に固設してある。10は係止部材であり、
弾性部たる瞬間荷重吸収部5bに対して係止することによ
りこの瞬間荷重吸収部5bに対して一定の負荷をかけてお
き、僅かな荷重で瞬間荷重吸収部5bが大きく撓むのを防
止している。Reference numeral 5 in the figure is a weighing dish. The weighing pan 5 is composed of a weighing object mounting surface 5a on the upper surface, and an instantaneous load absorbing portion 5b on the side portion integrally formed with the mounting surface 5a. Of these, the momentary load absorbing portion 5b on the side is bent and formed in a bellows shape as shown in the figure, and when a large load is momentarily applied, the bent portion bends to increase the instantaneous load. Absorb part. Reference numeral 6 denotes a weighing dish support plate on which the weighing dish 5 is placed and supported, and is fixed to the shaft 1. 10 is a locking member,
By locking to the instantaneous load absorbing part 5b which is an elastic part, a constant load is applied to this instantaneous load absorbing part 5b to prevent the instantaneous load absorbing part 5b from being largely bent by a small load. ing.
この構成において、秤量物を載置する際にその秤量物
を落下させる等により、瞬間的に秤量皿５に大きな荷重
が加わった場合には、その大荷重により瞬間荷重吸収部
5bが撓み、これによりその大部分が吸収され、秤量機構
に大きな荷重が直接加わるのを防止する。瞬間荷重の吸
収後は瞬間荷重吸収部5bは極めて短時間で原状に復帰
し、以後は秤量物の荷重を秤量皿支持板６、軸１を介し
て荷重測定部（図示せず）正確に伝達する。In this configuration, when a large load is momentarily applied to the weighing pan 5 by dropping the measured substance when placing the measured substance, the instantaneous load absorbing portion is caused by the large load.
5b bends, which absorbs most of it and prevents a large load from being directly applied to the weighing mechanism. After absorbing the instantaneous load, the instantaneous load absorbing section 5b returns to the original state in an extremely short time, and thereafter, the load of the weighing object is accurately transmitted through the weighing pan support plate 6 and the shaft 1 to the load measuring section (not shown). To do.
第２図および第３図は第２の実施例を示す。 2 and 3 show a second embodiment.
７は秤量皿本体であり、その側縁部には瞬間荷重吸収
部として脚部7bが、秤量皿本体７に対して一体的に複数
個形成してある。９は前記実施例の秤量皿支持板６とほ
ぼ同様の構成の秤量皿支持板である。Reference numeral 7 is a weighing dish main body, and a plurality of legs 7b are formed integrally with the weighing dish body 7 at the side edges thereof as instantaneous load absorbing portions. Reference numeral 9 is a weighing dish support plate having substantially the same structure as the weighing dish support plate 6 of the above-mentioned embodiment.
以上の構成においても秤量皿７の秤量物載置面7aに大
きな荷重が加わった場合には脚部7bが撓むことによりこ
の荷重の大部分を吸収し、荷重測定機構等、他の機構に
影響を与えるのを防止する。Also in the above configuration, when a large load is applied to the weighing object mounting surface 7a of the weighing pan 7, the leg portion 7b bends to absorb most of the load, and the other mechanism such as a load measuring mechanism is absorbed. Prevent impact.
第４図、第５図は第３の実施例を示す。 4 and 5 show a third embodiment.
この図に於いて、符号８は秤量皿本体であり、8bはこ
の秤量皿本体８に対して一体的に形成した脚部であり、
この部分が荷重吸収部を構成する。この脚部8bは前述の
第２の実施例に比較して長く形成し、各脚部8bにより軸
１を挟持するよう構成してある。脚部8bを長く形成する
ことにより良好なバネ効果が発揮できる。In this figure, reference numeral 8 is a weighing dish main body, 8b is a leg formed integrally with the weighing dish main body 8,
This part constitutes a load absorbing part. The leg portion 8b is formed longer than that of the second embodiment, and the shaft 1 is sandwiched between the leg portions 8b. By forming the leg portions 8b to be long, a good spring effect can be exhibited.
以上の各実施例に於いて、ベロー部、脚部等秤量皿の
一部に対してのみ弾性を持たせるのではなく、秤量物載
置面そのものをダイアフラムの如く構成することにより
秤量皿全体に弾性を持たせ、荷重の付加により秤量物載
置面を軸１の軸心方向に撓ませるよう構成すれば、より
効果的に瞬間荷重を吸収することができる。In each of the above embodiments, the bellows portion, the leg portion, and the like are not elastic to only a part of the weighing pan, but the weighing object mounting surface itself is configured like a diaphragm so that the entire weighing pan is covered. By providing elasticity and bending the weighing object mounting surface in the axial direction of the shaft 1 by applying a load, the instantaneous load can be more effectively absorbed.
またこの場合、秤量皿の秤量物載置面に対してのみ弾
性を持たせるよう構成することももとより可能である。Further, in this case, it is of course possible to provide elasticity only to the weighing object mounting surface of the weighing dish.
本発明は以上に示したように秤量皿の少なくとも一部
に弾性構造としたので、秤量皿自体で瞬間的な大荷重を
吸収することができ、秤量皿取りつけ部に別途弾性体を
配置する必要がない。このため装置の組立工程における
人手を低減でき、かつ装置の構成を単純化できる。また
弾性体および弾性体取り付け部材等の重量が秤量皿に加
わらないため、秤量皿の重量を軽く構成できる。Since the present invention has an elastic structure in at least a part of the weighing dish as described above, the weighing dish itself can absorb a momentary large load, and it is necessary to dispose an elastic body separately in the weighing dish mounting portion. There is no. Therefore, it is possible to reduce manpower in the assembly process of the device and simplify the structure of the device. Further, since the weight of the elastic body and the elastic body mounting member is not added to the weighing dish, the weight of the weighing dish can be reduced.
第１図は本発明の第１の実施例を示す秤量皿の断面図、
第２図は本発明の第２の実施例を示す秤量皿の断面図、
第３図は第２図に示す秤量皿の斜視図、第４図は本発明
の第３の実施例を示す秤量皿の断面図、第５図は第４図
に示す秤量皿の下面図、第６図は従来構造の秤量皿の断
面図である。 １……秤量皿支持用軸 ５、７、８……秤量皿本体 5a、7a、8a……秤量物載置面 5b……ベロー状瞬間荷重吸収部 7b、8b……脚部FIG. 1 is a sectional view of a weighing pan showing a first embodiment of the present invention,
FIG. 2 is a sectional view of a weighing pan showing a second embodiment of the present invention,
3 is a perspective view of the weighing dish shown in FIG. 2, FIG. 4 is a sectional view of the weighing dish showing a third embodiment of the present invention, and FIG. 5 is a bottom view of the weighing dish shown in FIG. FIG. 6 is a sectional view of a weighing pan having a conventional structure. 1 ... Weighing pan support shaft 5, 7, 8 ... Weighing pan body 5a, 7a, 8a ... Weighing object mounting surface 5b ... Bellows instantaneous load absorbing part 7b, 8b ... Leg part
Claims (5)
支持する軸体を介して荷重測定部に伝達する装置におい
て、軸体に対しては秤量皿を載置支持する秤量皿支持板
が設けられ、当該秤量皿支持板に配置される秤量皿は、
当該秤量皿の形成材料を屈曲形成することにより、秤量
皿の周縁部において秤量皿載置面から荷重付加方向に向
かって瞬間荷重吸収部が一体的に展出形成され、当該瞬
間荷重吸収部の下端が秤量皿支持板に当接支持させるこ
とにより、秤量皿に対する瞬間的な大荷重をこの瞬間荷
重吸収部の弾性変形により吸収するよう構成したことを
特徴とする秤量装置。1. A device for transmitting a load of a weighing object placed on a weighing pan to a load measuring section via a shaft supporting the weighing pan, wherein the weighing pan is mounted and supported on the shaft. A weighing plate provided with a support plate and arranged on the weighing plate support plate is
By bending and forming the forming material of the weighing pan, the instantaneous load absorbing portion is integrally formed and formed in the peripheral portion of the weighing pan from the weighing plate mounting surface in the load applying direction. A weighing apparatus, wherein a lower end of the weighing plate is brought into contact with and supported by a weighing plate support plate to absorb a large instantaneous load on the weighing plate by elastic deformation of the instantaneous load absorbing portion.
ロー状部を瞬間荷重吸収用弾性部としたことを特徴とす
る特許請求の範囲第（１）項記載の秤量装置。2. The weighing device according to claim 1, wherein the side edge of the weighing dish is formed in a bellows shape, and the bellows-shaped portion is an elastic portion for absorbing an instantaneous load.
部を瞬間荷重吸収用弾性部としたことを特徴とする特許
請求の範囲第（１）項記載の秤量装置。3. A weighing device according to claim 1, wherein legs are connected to the weighing dish main body, and the legs are elastic portions for absorbing instantaneous load.
で位置させ、各脚部により秤量皿支持用軸を挟持するよ
う構成したことを特徴とする特許請求の範囲第（１）項
記載の秤量装置。4. A range (1) according to claim 1, characterized in that the legs are located near the center of the lower surface of the weighing dish main body, and the legs support the weighing dish supporting shaft. The weighing device described.
重の付加により秤量物載置面が、秤量皿支持用軸の軸心
方向に撓むよう構成したことを特徴とする特許請求の範
囲第（１）項記載の秤量装置。5. The patent is characterized in that the weighing object placing surface is also made to have elasticity so that the weighing object placing surface is bent in the axial direction of the weighing dish supporting shaft when a load is applied. The weighing device according to claim (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61109650A JPH0827210B2 (en) | 1986-05-15 | 1986-05-15 | Weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61109650A JPH0827210B2 (en) | 1986-05-15 | 1986-05-15 | Weighing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62266422A JPS62266422A (en) | 1987-11-19 |
| JPH0827210B2 true JPH0827210B2 (en) | 1996-03-21 |
Family
ID=14515663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61109650A Expired - Lifetime JPH0827210B2 (en) | 1986-05-15 | 1986-05-15 | Weighing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0827210B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56137030U (en) * | 1980-03-18 | 1981-10-17 | ||
| JPS6031629U (en) * | 1983-08-10 | 1985-03-04 | 株式会社島津製作所 | Balance with shock absorber |
| JPS60106128U (en) * | 1983-12-23 | 1985-07-19 | 株式会社島津製作所 | Shock absorption mechanism of electronic balance |
-
1986
- 1986-05-15 JP JP61109650A patent/JPH0827210B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62266422A (en) | 1987-11-19 |
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